Hi I Was Prescribed Norethosterone 5mg X Tds For Simple

Hi I was prescribed norethosterone 5mg x tds for simple cystic endometrial hyperplasia for 3 months . I stopped taking it on 30th Nov and got periods on 2nd Dec which were ok but this month it started with pinkish spotting for 4days and then proper bleeding for the next 6 days and haven't finished yet so altogether 10 days . My biopsy report ( taken after 3 months treatment , in Dec ) is still awaited but I'm bit worried as whether this bleeding suggests hyperplasia is not reversed or is it normal ?